2451144232 has 8 divisors (see below), whose sum is σ = 4595895450. Its totient is φ = 1225572112.

The previous prime is 2451144161. The next prime is 2451144233. The reversal of 2451144232 is 2324411542.

It can be written as a sum of positive squares in only one way, i.e., 2058073956 + 393070276 = 45366^2 + 19826^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2451144232.

It is not an unprimeable number, because it can be changed into a prime (2451144233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153196507 + ... + 153196522.

Almost surely, 2^2451144232 is an apocalyptic number.

It is an amenable number.

2451144232 is a deficient number, since it is larger than the sum of its proper divisors (2144751218).

2451144232 is a wasteful number, since it uses less digits than its factorization.

2451144232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306393035 (or 306393031 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 2451144232 is about 49509.0318224867. The cubic root of 2451144232 is about 1348.3095864588.

Adding to 2451144232 its reverse (2324411542), we get a palindrome (4775555774).

The spelling of 2451144232 in words is "two billion, four hundred fifty-one million, one hundred forty-four thousand, two hundred thirty-two".